"Noctua's low profile NH-L9x65 heatsink stands just 64mm tall and has a very compact footprint of only 95x95mm. The NH-L9x65 is designed to cool some fairly intensive Intel sockets, along with the full spectrum of AMD processors and APUs. Compact CPU coolers can be a little tricky to install, but Noctua long ago laid down the framework of an excellent motherboard mounting system,, so the NH-L9x65 is a breeze to work with.
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Though identical in appearance the Evercool Transformer 4 HPJ-12025 (2010 ed.) heatsink is actually a revised and updated version of the Transformer 4 HPJ-12025 cooler Frostytech tested in 2009. Chief among the differences is an up to date mounting bracket that accommodates the full range of Intel processors (socket 775/1155/1156/1366) in addition to the full gamut of AMD chips.

HPL-815 is a low profile heatsink suited for use in 2U
thick computer cases. It's equipped with a top mounted 80x80x15mm PWM
fan that rotates at speeds of 4000-1000RPM, exhausting air downwards into a 23mm tall array of quilted aluminum fins.

EKL AG is German thermal solutions company that mostly specializes in
manufacturing OEM heatsinks for the European market. The company has been making in-roads into the enthusiast market with a collection of consumer CPU coolers released under its Alpenfohn sub-brand.

The nPowertek TTIC NPH-105 heatsink is an interesting CPU cooler because it is constructed with 6mm diameter copper heatpipes (two) and a not so common 25mm diameter copper heat column that is capable of moving a lot of heat on its own.

Unlike heatpipes which typically use water under a slight vacuum for working fluid, the Revo heatsink is slightly pressurized with a fluorocarbon called R134a. R134a has a boiling point of -26.3°C at room pressure, but in the hermetically sealed system at a slight pressure that boiling point is raised to a level more appropriate for this application.

In wind tunnels metal honeycomb panels are often used to smooth out the turbulent airflow and create laminar airflow. Coolage's X120TF heatsink borrows from this idea with a loosely shaped honeycomb fin stack. It will be interesting to see what impact this kind of fin geometry has on the relatively deep fins of the X120TF heatsink - will it help or hinder the cooling performance?

The CNPS9900 Max heatsink has a total heat dissipation surface area on the order of 5402cm2, stands 150mm tall and weighs 755 grams. The manufacturer claims max heat capacity is a whopping 300W! CPU compatibility extends to Intel socket 775/1155/1156/1366 and AMD socket AM2/AM3 processors.

Dynatron's Evo-11 heatsink hopes to make its mark with a unique implementation of 6mm heatpipes. Two rows of heatpipes, four below and three above form the base of the Evo-11 heatsink. All the heatpipes are set into a pretty hefty nickel plated aluminum base block, formed from three separate slabs of metal soldered together.

Frostytech is not going to waste your time by leaving the most important information till the very end of this review - the Nexus VCT-9000 heatsink is an interesting looking thermal solution, but it fails completely in its execution. Nexus have
manufactured the VCT-9000 heatsink poorly, resulting in uneven exposed heatpipes that may not contact the processor properly.

In this review Frostytech is testing Titan's new Hati TTC-NC15TZ exposed heatpipe base CPU cooler. The TTC-NC15TZ is capable of very good performance results with the supplied 120mm PWM fan operating at full speed, however that trend quickly changes direction once fan speed is brought down for quieter operation...

Arctic Cooling's Freezer 11 LP heatsink is comprised of two sections, a ~100x80mm heatsink fin stack and a thin 92mm fan integral with mounting bracket and fan shroud. The fin stack is comprised of nickel plated fins which are soldered to a pair of 6mm diameter copper heatpipes.

Rated for heat loads of up to 200W
according to the manufacturer, the Arctic Cooling Freezer 13 is a relatively compact sub-130mm tall heatsink. It's 92mm fan utilizes fluid dynamic bearings and a low noise impeller design.

Broad processor support, however, is not what makes the Scythe Rasetsu heatsink stand out.... instead it's a mixture of acute and obtuse isosceles triangular voids cut into the leading and trailing edges of the heatsinks aluminum fins.

The upper fan on the Glacialtech Siberia heatsink measures 140x140mm in size and rotates at 1400-800RPM, the lower 2x92mm fan operates at a fixed speed of 1300RPM. With both fans running at full speed the Siberia heatsink is moderately quiet.

The Akasa Venom heatsink stands 160mm tall and weighs just over 800grams. It's built around four 8mm diameter copper heatpipes and raw aluminum cooling fins. The Venom ships with a fancy nuclear yellow fan called the 'S-Flow' that spins at 600-1900RPM, moving around 83CFM according to the manufacturer.

In this review Frostytech will be testing out one of the latest hopefuls, the SilenX EFZ-100HA1 heatsink. This low profile cooler is a complex little bundle of heatpipes and fins, and stands only 67mm tall.

Although it doesn't look it, the BARAM 2010 heatsink is slightly different than the original BARAM model. What sets the two BARAM heatsink models apart is - fin density - the number of aluminum fins each heatsink packs into the roughly 105mm vertical space.

Standing just 88mm tall, the Glacialtech Igloo 5760 PWM heatsink is relatively compact as modern CPU coolers go. Small through it may be, Glacialtech seem to have engineered it in just the right spots to manage the demanding peak thermal loads of top-end processors like the AMD Phenom II X4.